diff --git a/src/main/java/com/tianbo/util/Date/DateUtil.java b/src/main/java/com/tianbo/util/Date/DateUtil.java
index 79ab015..0b931d8 100755
--- a/src/main/java/com/tianbo/util/Date/DateUtil.java
+++ b/src/main/java/com/tianbo/util/Date/DateUtil.java
@@ -530,11 +530,10 @@ public final class DateUtil {
      * @return
      * @throws ParseException
      */
-    public Date dateTimeAddfifteen(Date date) throws ParseException {
+    public static Date dateTimeAddfifteen(Date date) throws ParseException {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
         Calendar nowTime = Calendar.getInstance();
-
         nowTime.setTime(date);
         nowTime.add(Calendar.MINUTE, 15);
         Date time = nowTime.getTime();